16869911 has 2 divisors, whose sum is σ = 16869912. Its totient is φ = 16869910.

The previous prime is 16869907. The next prime is 16869943. The reversal of 16869911 is 11996861.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16869911 - 2² = 16869907 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16869991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8434955 + 8434956.

It is an arithmetic number, because the mean of its divisors is an integer number (8434956).

Almost surely, 2^16869911 is an apocalyptic number.

16869911 is a deficient number, since it is larger than the sum of its proper divisors (1).

16869911 is an equidigital number, since it uses as much as digits as its factorization.

16869911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 41.

The square root of 16869911 is about 4107.2997212280. The cubic root of 16869911 is about 256.4706055052.

The spelling of 16869911 in words is "sixteen million, eight hundred sixty-nine thousand, nine hundred eleven".